tessie



2 Sheets-Sheet 1.

C. TESSIE du MOTAY & E. J. JERZMANOWSKl. Apparatus for the Production ofGas for Metallurgical and Other Purposes.

No. 216,118. Patented June 3,1879.

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l I M l 2 Sheets-Sheet 2.

O. TESSIE du MOTAY & E. J. JERZMANOWSKI. Apparatus for the Production ofGas for Metallurgical and Other Purposes.

No. 216,118. Patented June 3,1879.

N-PETERS, PHOTO-LITHOGRAPHEH. WASHINGTON o c UNITED STATES PATENT,OFFron.

CYPRIEN TESSIFI DU MOTAY AND ERAZM J. J ERZMANOlVSKI, OF NETV YORK, N.Y., ASSIGNORS TO EDTVARD STERN, OF SAME PLACE.

IMPROVEMENT IN APPARATUS FOR THE PRODUCTION OF GAS FOR METALLURGICAL ANDOTHER PURPOSES.

Specification forming part of Letters Patent No.

216,118, dated June 3, 1879; application liled February 21, 1879.

To all whom it may concern:

Be it known that we, OYPRIEN Tnssnt DU ZVIOTAY and ERAZM J.JERZMANOWSKI, of the city and Stateof New York, have invented a new anduseful Apparatus for the Production of Gas for Metallurgical and otherPurposes, of which the following is a full, true, and act description,reference being bad to the accompanying drawings.

It has been found to be a matter of the lit most importance in thetreatment of iron and in other metallurgical furnaces, such as those forthe treatment of metals, glass, porcelain, ac, to obtain a constantsupply of two or more gases burning at different temperatures, wherebydifferent heats can be produced and carbonizing or oxidizing flames maybe obtaincd.

()ur apparatus is arranged to give a constant supply of two kinds ofgases to a single furnace, or to burn either of these gases independentof the other; and in the carrying out ofthis invention we have employedtwo gasgenerators for the production of two kinds of gas, each of thesegenerators being so contrived that either kind of gas may be thereinproduced, and the pipes and connections being arranged in such a waythat the gas pro- 'duced in either generator may be supplied to themetallurgical furnace or furnaces through. the same pipe.

The gases principally employed are carbonic oxide and other gases mixedtherewith, produced by the reaction between air and hot coal or coke,and water-gas. produced by the reaction of hot coal or coke and steam orwater.

()ur invention will be clearly understood from the accompanyingdrawings.

A A represent two gasgenerators, adapted to the production of eithercarbonic oxide or water-gas or carbureted hydrogen. Steam or air may besupplied to said generators by tuyeres S and T, so that either carbonicoxide or water-gas may be produced in the manner already well known andpatented.

The two sides of the apparatus are duplicates, and one only will bedescribed.

The gas produced in the generatorA passes by pipe 13 into the hydraulicmain M. With this two pipes, D and E, are connected, the pipe D beingused to carry ofl the carbonic oxide, and the pipe H for water-gas orcarbureted hydrogen. \Vithiu the hydraulic main are two water-cupvalves, arranged to close the ends of the pipes D and E, and providedwith suitable levers for their operation. Suitable purge-valves are alsoconnected with. pipes D and E.

The pipe 0 is shown as a branch pipe, passpipe H is similarlyconstructed. Connected with the pipe 0 is the gas-holder L, and thegasholder N is similarly connected with the pipe H.

A number of generators, A A, may be arranged in a row to still furtherinsure the constant production of the gases.

K, I, and K represent metallurgical furnaces. The furnace K is onlyconnected with the carbonic-oxide pipe, the furnace K with the water-gasor earbureted-hydrogen pipe, and the furnace P with both pipes. Theconnecting-pipes are of course provided with suitable valves. By meansof these connections the diit'erent heats arising from the combustion ofthe carbonic oxide, Watergas, or can bureted hydrogen, or a mixture ofthem, may be obtained. Air (preferably heated) is injected at the pointof combustion.

A safety-"alve, V, is connected with the carbonic-oxide pipe 0, for thepurpose of relievin g any excess of pressure in that pipe.

The operation of the apparatus can now be understood. Supposing thegas-generatorA a is being used in the production of carbonic oxide, thensteam is shut off and air is forced in through its tuyere. The gasresultingpasses out through pipes D and 0, the pipe .Tl being closed byits cup-valve, as shown in the left of Figure 1, which represents apartial elevation and partial section of part of my apparatus. Fig. 2represents a detailed view of an ordinary safety-valve, and Fig. 3 aplan view of the con nections. The gas produced in the generator A,passing into the pipe 0, may be used in the furnaces K and 1, and anyexcess passes into the holder L, which maintains a constant pressure andan even flow of gas through the pipe 0. In case, however, more gas isproduced mg on both sides of the generators, and the than can becontained by the pipes and holder, the excess of pressure is relieved bythe safety-valve V.

The other generator, A, is used for the production of water-gas orcarbureted hydrogen by injecting steam through the tuyere S into the hotcoal or coke. In this case the pipe 1) is closed by its cup-valve andthe pipe E is open, so that the water-gas produced passes into the pipeH, and may be used in the furnaces P and K, any excess passing into theholder N.

By using alternately the generators A and A for the production ofcarbonic oxide and water-gas or carbureted hydrogen, an almostcontinuous supply of these two gases can be maintained, and with the aidof the holders this supply is made absolutely continuous and uniform.The obtaining of a continuous and even supply of gas for metallurgicalpurposes is of the utmost importance, because many of those processesdepend for their success upon the amount of gas supplied and thechemical reactions resulting therefrom. By using the interchangeablegenerators shown, a considerable advantage is derived in the continuousproduction of the gas required, because a certain time is consumed inbringing the coal or coke to a sufliciently hot condition to producewater-gas, and the production of such gas upon the introduction of steamnecessarily rapidly lowers the temperature; and it it is necessary towait for a second heating by air forced in and a second incandescentcondition of the coke, it is obvious that the supply of water-gas orcarbureted hydrogen would be intermittent; but

by using carbonic oxide which is produced in among the coal or coke fromone generator and the hydrogen produced in the other retort, and by thenconnecting each alternately with the hydrogen and carbonicoxide pipe, acontinuous supply is readily obtained.

What we claim as ourinvention, and desire to secure by Letters Patent,is-

1. The combination, with a metallnrgic gasfurnace, of twogas-generators, each for producing a different kind of gas, and of twogoverning-holders, one connected with each supply-pipe, for the purposeof insuring a constant supply of gas during periods of non-production,substantially as described.

2. In combination with a metallurgie gasfurnace, two gas-generators,each for supplying a different kind of gas to the same, and the pipesand connections shown, enabling a supply of either kind of gas fromeither generator, and two goy'ernin g or regulating holders formaintaining an even pressure and an even flow, substantially asdescribed.

g 3. In combination with a mctallurgic gasfurnace, two gas-generators,each supplying a different kind of gas to the furnace, twogoverning-holders for maintaining a constant supply of gas, and one ormore safety-valves connected with the pipes, for the purpose of preventing too great pressure in the supply-pipe and holders, substantiallyas described.

0. TESSIE DU MOTAY. ERAZM J. JERZMANOVSKI. Witnesses S. F. SULLIVAN, WM.J. SAWYER.

